USPTO Patents Application 10089810

MAR. 4. 2004 3:56PM

NO. 1054 P. 7

Application No. 10/089,810
Case No. FA 1068

This listing of claims will replace all prior versions, and listings, of claims in the
application:

Listing of Claims:

Claims 1-9, (canceled)

Claim 10- (previously presented) A process for coating a clear lacquer coating
over a base lacquer in a base lacquer/clear lacquer two-coat
lacquering system, comprising the steps of:

a) applying a base lacquer coating selected from the group consisting
of a color-providing base lacquer coating and an effect-providing
base lacquer coating to a substrate;

b) applying the clear lacquer coating onto the base lacquer coating as
a top coating, said clear lacquer coating being curable by radical
polymerization; and

c) curing said clear lacquer coating with high-energy radiation;

wherein the clear lacquer coating comprises a resin solid consisting of:

I. 70 to 100 of at least one radically polymerizable polymer
selected from the group consisting of oligomers and prepolymers,
wherein said polymers have at least one olefinically unsaturated
group; and

II. 0 to 30 wt.% of at least one radically polymerizable reactive thinner
having olefinically unsaturated groups and having a calculated
molar mass of less than 500;

wherein 75 to 100 wt.% of component I Is an aliphatic urethane
(meth)acrylate having an average (meth)acryloyl functional tty of 3 to
4.5 and a calculated molecular mass of at least 826;

wherein said aliphatic urethane (meth)acrylate Is fomied by reacting an
acyclic aliphatic diisocyanate having 8 C atoms with at least one low-

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MAR. 4. 2004 3:56PM

NO. 1 054 P. 8

Application No. 10/089,810
Case No. FA 1068

molecular aliphatic compound, wherein sard low-molecular aliphatic
compound has at least one hydroxy group and at least one
(meth)acryloyl group, and optionally with at least one low-molecular
aliphatic hydroxy reactant selected from the group consisting of diols
and polyols; and

wherein 0 to 25 wt,% of component I is a radically polymerizable
member selected from the group consrsting of polymers and oligomers,
wherein said radically polymerizable member contains radically
polymerizable double bonds, said radically polymerizable member
being different from the aliphatic urethane (meth)acry late of component
L

Claim 1 1 . (previously presented) The process according to claim 1 0 wherein the
aliphatic urethane (meth)acrylate is formed by reacting polyisocyanates
based on acyclic aliphatic diisocyanates having 8 C atoms, wherein the
polyisocyanates contain heteroatom groups linking isocyanate groups
together in said polyisocyanates, with at least one low-molecular
aliphatic compound, wherein said low-molecular aliphatic compound
has at least one hydroxy group and at least one (meth)acry!oyl group,
and optionally with at least one low-molecular aliphatic hydroxy
reactant selected from the group consisting of diofs and polyols.

Claim 12. (previously presented) The process according to claim 10 wherein the
clear lacquer coating comprises a resin solid consisting of:

I. 90 to 100 wt.% of at least one radically polymerizable polymer
selected from the group consisting of oligomers and prepolymers,
wherein said polymers have at least one olefinically unsaturated
group; and

II, 0 to 1 0 wt,% of at least one radically polymerizable reactive thinner
having olefinically unsaturated groups and having a calculated
molar mass of less than 500.

3

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MAR. 4. 2004 3: 57PM NO. 1054 P. 9

Application No. 1 0/089.81 0
Case No. FA 1068

Claim 13. (previously presented) A process for coating a transparent sealing
coat onto a multi-coat lacquer, comprising the steps of:

(a) applying the transparent sealing coat to an outer lacquer coating of
a substrate; and

(b) curing the transparent sealing coat with high-energy radiation;

wherein the transparent sealing coat comprises a resin solid consisting
of:

I. 70 to 100 wt.% of at least one radically polymeri^able polymer
selected from the group consisting of oligomers and prepolymers.
wherein said polymers have at least one olefinically unsaturated
group; and

II. 0 to 30 wt.% of at least one radically polymerizable reactive thinner
having olefinically unsaturated groups and having a calculated
molar mass of less than 500;

wherein 75 to 100 wt% of component I is an aliphatic urethane
(meth)acrylate having an average {meth)acryloyl functionality of 3 to
4.5 and a calculated molecular mass of at least 826:

wherein said aliphatic urethane (meth)acrylate is formed by reacting an
acyclic aliphatic diisocyanate having 8 C atoms with at least one low-
molecular aliphatic compound, wherein said low-molecular aliphatic
compound has at least one hydroxy group and at least one
(meth)acryloyl group, and optionally with at least one low-molecular
aliphatic hydroxyl reactant selected from the group consisting of diols
and polyols and

wherein 0 to 25 wt-% of component I is a radically polymerizable
member selected from the group consisting of polymers and oligomers,
wherein said radically polymerizable member contains radically
polymerizable double bonds, said radically polymerisable member
being different from the aliphatic urethane (meth)acrylate of component
I.

4

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MAR, 4. 2004. 3: 57PM

NO. 1054 P. 10

Application No. 10/089.810
Case No. FA 1068

Claim 14. (previously presented) The process according to claim 13 wherein the
aliphatic urethane (meth)acrylate is formed by reacting polyisocyanates
based on acyclic aliphatic diisocyanates having 8 C atoms, wherein the
polyisocyanates contain heteroatom groups linking isocyanate groups
together in said polyisocyanates, with at least one low-molecular
aliphatic compound, wherein said low-molecular aliphatic compound
has at least one hydroxy group and at least one (meth)acryloyl group,
and optionally with at least one low-molecular aliphatic hydroxyl
reactant selected from the group consisting of diols and polyols.

Claim 15. (previously presented) The process according to claim 13 wherein the
transparent sealing coat comprises a resin solid consisting of:

I. 90 to 100 wt.% of at least one radically polymerizable polymer
selected from the group consisting of oligomers and prepolymers,
wherein said polymers have at least one olefinically unsaturated
group; and

II, 0 to 10 wt.% of at least one radically polymerizable reactive thinner
having olefinically unsaturated groups and having a calculated
molar mass of less than 500.

Claim 1 6. (previously presented) The process according to claim 1 0 or 1 3,

wherein the acyclic aliphatic diisocyanate having 8 C atoms is selected
from the group consisting of methyl pentane diisocyanate and hexane
diisocyanate.

Claim 17. (previously presented) The process according to claim 1 1 or 14.

wherein the polyisocyanates are selected from the group consisting of
polyisocyanates with carbodiimide groups, polyisocyanates with
allophanate groups, polyisocyanates with isocyanurate groups,
polyisocyanates with uretdione groups, and polyisocyanates with biuret
groups.

5

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MAR. 4. 2004 3:58PM

NO. 1054 P. 11

Application No. 10/089,810
Case No- FA 1068

Claim 18. (previously presented) The process according to claim 11 or 14,

wherein the polylsocyanates are selected from the groups consisting of
tris-(6-isocyanatohexyl)-biuret and isocyanurate derived from hexane
diisocyanate.

Claim 19. (previously presented) The process according to claim 13 wherein the
transparent sealing coat is applied in step (a) to an outer lacquer
coating selected from the group consisting of a single-coat finishing
lacquer coat, an outer finishing lacquer coat, and an outer clear lacquer
coat.

Claim 20. (previously presented) A substrate coated according to the process of
claim 10,

Claim 21 . (previously presented) A substrate coated according to the process of
claim 13.

Claim 22. (previously presented) The substrate according to claim 20 or 21
wherein said substrate is a motor vehicle or part thereof.

Claim 23. (previously presented) The process according to claim 13 wherein said
transparent sealing coat is applied in step (a) to areas of the outer
lacquer coating particularly susceptible to scratching.

Claim 24. (previously presented) The process according to claim 23 wherein said
transparent sealing coat is applied to areas of a motor vehicle selected
from the group consisting of areas near locks, areas near door
handles, areas near door entries, loading edges, roof, and rear end of
said motor vehicle.

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